Home / 5,415.62-7,474.06-3,290.66

Finding the Fourth Proportional to 5,415.62, 7,474.06 and 3,290.66

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Solution

The fourth proportional to 5,415.62, 7,474.06 and 3,290.66 is: 4,541.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.62 : 7,474.06 = 3,290.66 : x
  2. Step 2: Convert to fraction form
    5,415.62/7,474.06 = 3,290.66/x
  3. Step 3: Cross multiply
    5,415.62x = 7,474.06 × 3,290.66
  4. Step 4: Simplify right side
    5,415.62x = 24,594,582.05
  5. Step 5: Solve for x
    x = 24,594,582.05/5,415.62
  6. Step 6: Final answer
    x = 4,541.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.